<template>
    <div class="slds-p-around_small slds-grid slds-grid--vertical-align-center slds-grid--align-center">
        <div class="echart" style="height:400px;width:600px;padding:1%;border:1px;"></div>
        <div if:false={isEchartsInitialized} class="slds-col--padded slds-size--1-of-1">
            <lightning-spinner alternative-text="Loading" size="medium" variant="base"></lightning-spinner>
        </div>
    </div>
</template>